| 2601 | Iron ores and concentrates, including roasted iron pyrites: | 9 | Calc rate |
| 2612 | Uranium or thorium ores and concentrates: | 2 | Calc rate |
| 2613 | Molybdenum ores and concentrates: | 2 | Calc rate |
| 2615 | Niobium (columbium), tantalum, vanadium or zirconium ores and concentrates: | 6 | Calc rate |
| 2616 | Precious metal ores and concentrates: | 12 | Calc rate |
| 2617 | Other ores and concentrates: | 4 | Calc rate |
| 2620 | Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: | 42 | Calc rate |
| 2621 | Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste: | 2 | Calc rate |